to -- using. we have built many checks and balances in to this approach. in defining the standards, we tapped three groups that have what we think is the best research base and a lot of experience in doing this work. that is act, achiever, and the college board. they had individuals on that very first standards development work group. we have also identified a pretty long list of expert feedback reviewers. as the standards development corporation group has been putting draft together, they have sent those to those experts for a pretty quick turnaround. feedback. in addition, we have shared these documents in their developmental stages -with governors' offices and a number of national and content organizations who we thought could provide some very rich initial feedback and continuous feedback as we do our work. for example, we have been having conversations with the national council of teachers of english, mathematics ,the nea, -- mathetmatics, the nea, the fet. about 20, 25 superintendents and ot